The wind and weather in Sailaway comes from NOAA. Every 6 hours the Sailaway servers download the latest gribfiles from the NOAA server.
Since Sailaway needs global weather predictions it uses the FPS model at a resolution of 0.25 degrees.
Unfortunately the gribfiles are not available directly after they are made, but about 3-4 hours later. For this reason, Sailaway doesn't use the actual weather conditions as reported, but uses the 6 hour in advance predictions.
To prevent sudden weather changes, the previous conditions are slowly changed towards the newly downloaded conditions over a period of 2 hours.
orbcreation b.v. - dr. schaepmanstraat 66 - 2982ag ridderkerk - the netherlands - terms and conditions